Title Codes, ciphers, and other secrets / Karin N. Mango.

Publication Info.

New York : F. Watts, 1988.

Copies

Location	Call No.	Status
Bristol, Main Library - Children's Department	J652.8 MAN	Check Shelf
Enfield, Main Library - Children's Department	J 652 MANGO	Check Shelf

Description	93 pages : illustrations ; 23 cm.
Series	A First book
	First book.
Note	Includes index.
Bibliography	Bibliography: pages 87-88.
Summary	Describes the many ways of hiding the real meaning of what someone is trying to say by using a code or replacing the message with a cipher.
Subject	Cryptography -- Juvenile literature.
	Ciphers -- Juvenile literature.
	Cryptography.
	Ciphers.
ISBN	053110575X library binding

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